International Research Journal of Engineering and Technology (IRJET) Volume: 04 Issue: 02 | Feb -2017
e-ISSN: 2395 -0056
www.irjet.net
p-ISSN: 2395-0072
Optimisation of Process parameter for Friction Stir Welding of Aluminium alloy using cylindrical pin profile Khwaja Muzammil1, Prof. R.D.Shelke2 1 Student,Dept of Mechanical engineering, Everest College of Engineering, Maharashtra, India 2 Professor,Dept of Mechanical engineering, Everest College of Engineering, Maharashtra, India ------------------------------------------------------------------------------***---------------------------------------------------------------------------------
Abstract Objective: Friction Stir Welding is a solid state joining process combining deformation heating and mechanical work to obtain high quality, defect free joints. The objective of the present work is to evaluate the tensile properties of FSW butt joint. In this work, three process parameters such as spindle speed, welding speed and plunge depth were considered for friction stir welding .As it is difficult to perform number of experiments to find out the level combinations which yield good mechanical properties like tensile strength, TaguchiL9 orthogonal array is used to reduce the number of experiment. The material is bought and are cut into specific material and polished. They are then welded based on the different experiment obtained from Taguchi method. After welding is done the metals are cut as per the specific standard. The results are then analyzed using Taguchi method Keywords: Aluminum Alloys, Axial Force, Friction-Stir Welding, Microstructure, Tensile Strength
1. Introduction
Friction Stir Welding (FSW) was invented at The Welding Institute (TWI) of the United Kingdom (Cambridge) in 1991 as a solid state joining technique and was initially applied to Aluminum Alloys (Dawes C and Thomas W, TWI Bull, 1995; Thomas W M, etal., 1991). Friction Stir Welding is a solid state joining process combining deformation heating and mechanical work to obtain high quality, defect free joints. Friction Stir Welding is especially well suited to joining Aluminum Alloys in a large range of plate thickness and has particular advantages over fusion welding when joining of highly alloyed Aluminum is considered.[1]. The heat input into the material and the resulting welding temperature can be controlled by adapting process parameters like the down-force, rotational speed or welding speed as shown in Fig. 1
Fig. 1 Principle drawing of the FSW process for joints with indication of the main parameters
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